Angle or miter clamp.



M. JOAGHIMSON.

ANGLE 0R MITER CLAMP.

APPLIUATION FILED 111111115, 1910.

1,081,31 1 4 Patented 119111111913.

2 SHEETS-SHEET l.

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www0/omo: 5mm who@ CoLuMBIA PLANoanAPH C0..w^sll|NaToN. D. c.

M. JOACHMSON.

ANGLE 0R MITER CLAMP.

APPLICATION FILED JUNE15,1910.

17,081,31 1, Patented Dec. 16, 1913.

2 SHEETS*SHEET 2.

COLUMBIA PLANOGRAPH co1. WASHINUTQN. n. c.

UNITED STATES PATENT OFFICE.

MARTIN JOACHIMSON, OF NEW YORK, N. YWASSGNOR T0 BASS BROS., 0F NEW YORK,

N. Y., A CORPORATION OF NEW- YORK.

ANGLE 0R MITER p CLAMP.

Specification of Letters Patent.

Patented Dee. 1e, 191s'.

To all whom t may concern Be it known that I, MARTIN Jorim-mason, a citizen of the United States, residing at N ew York city, in the county and vState of New York, have invented certain new and useful Improvements in Angle or Miter Clamps, of which the following is a spec1- tication.

The object ot this invention is to provide a clamp that will hold pieces of angular formation such as angular joints of moldings, sash and door :trames &c., to hold the parts together at the desired angle while they are being irmly secured by nails while the glue sets, or are fastened by other means, and furthermore it is the object ot this invention to correct certain detects and short comings which are common to devices now in use.

References are to be had to the accompanying drawings forming part of this specication wherein like figures indicate the same part throughout the several views.

Figure I, represents a plan ot the device in open position. F ig. II, is a side view seen from the right side ot Fig. I. Fig. III, represents a section of the line A A of Fig. I. Figq IV, is a plan of a modified design oi the clamp, the moldings are here shown clamped ready for fastening. I? ig. V, is a front elevation of Fig. IV. Fig. VI, is a trent view ot the corner gage. Fig. VII, is a side elevation ot the same with section of the trame.

More specilically described, the construe tion of the clamp embodies the frame parts l and 2 which are connect-ed by guide bars 3. The parts of this trame are made of suitable material preferably iron. ConA nected and forming part oi the trame part 2, are seats or supports 4. The seats 4 serve as a support for the material to be clamped. Journaled in the frame parts l and 2 of the trame are screws 5 and 6, and a lock collar 7 is attached to the rear end of each screw, and the head S on the outer end of each screw has the handle bar 9 loosely attached for operating said screws and forms a handle for the same. Mounted on said screws 5 and 6 are jaws or clamps l() and 1l adapted to operate on said screws by a threaded part l2, said jaws have formed thereon seats or supports 18 and 14 which are adapted to support in conjunction with seats 4 of the frame part 2 the material to in which a recess l5 of be clamped. Mounted on and forming part of the trame part 2 are posts 1G to which are attached by suitable means resilient opposing jaws 17 which are adapted to co` operate with the movable jaws l() and l1 in bringing' the material to be clamped between them to the required angle and a tight joint. Mounted on trame part l and at the center 'of the same is a boss 1S having a hole or aperture adapted to hold a guide bar 19 to which is movably attached the gage 20 angular formation is formed to receive the ends of the angular pieces to be clamped. The gage 20 is held in the required. position by means of the thumb screws 21, and the guide bar 19 is held in position by means of the thumb screw 22. A groove 23 is formed in the lower side of the guide bar 19 in which the points 24 of the thumb screws 2l and 22 slide to secure a true vertical position o" the gage 20. (n order to better secure the holding oi" the pieces to be clamped when they are in position, the jaws l0 lG have mounted thereon adjustable Ibolts 25 which are adapted to hold the bars 2G, the said bars when in. position are used to hold `the wedges 27 which force the pieces to be clamped securely against the seats or supports 4, 13 and 14. It will readily be seen that by this form of construction of my invention that the jaws can be operated independently, and that various widths oi" pieces of material can he placed between the jaws and held securely at the proper angle.

In the modified form of my invention 1t willbe seen that I have mounted on the rear end of the screws 5 and 6 miter gears 28, which are adapted, when the screw 5 is operated, to transmit the motion of the screw G which will operate both jaws simultaneously.

The rear or opposing aws ot the modiiied torni ot my invention consistent springs 29 and plates 30 to which are secured guide pins 31. The object of having plates 30 and the springs 29 forming the rear jaws is to provide a flat resilient surface against the clamped material, and to keep the liront surface of the rear jaws parallel to the working faces oit the jaws l() and l1 by means of the guide pihs 3l.

To more clearly demonstrate the opera tion oi' my device, it two` pieces of properly cut material are laid in the clamp with a and ll and the posts small opening between the lines B and C as indicated, and the jaws are tightened by turning handle 9, this opening will remain of equal width at any point of the joining line, or in other words, B will remain parallel to C. It is of utmost importance that the means of closing this opening do not alter the parallelism of the joining edges. Such alteration would take place by any shifting of the outer jaws 10 and l1 toward the joining line lil- 13, or by an angular movementof the jaw. it is obvious that the closing of the outer aws l0 and l1 will shift the molding 32, indicated by dash and double dotted lines in Figs. I, il and II, inward, and compress the resilient jaws 17 without any alteration of angularity. ln this manner the opening between B and C is gradually closed and a further closing of the jaws will produc-e a uniform pressure all along the oining line. Should the joining edge of one of the pieces 32, when laid in the clamp, be farther away from the correct joining line E-E, than the other, by turning the two screws accordingly, one more than the other, the two pieces may still be correctly joined. rlthe closing lines of the jaws form an angle with each oth-er in the plan as shown in Fig. I, each pair of the jaws is intended to clamp as illustrated in Fig. lV, one of the two pieces of the material 32, which have to be fastened at the line E-E which bisects the angle, which is also the angle formed by the closing line of the two pairs of the jaws. The pieces 32 rest on the supports 13 and la of the outer jaws lO and 1l and on the supports a of the frame part 2. rlhe outer jaws slide on guides 3, and when the screws are operated so that the jaws are worked against the pieces to be clamped, the pieces are drawn securely together and form a tight joint at the angle required.

it is obvious that the construction of my invention leaves the joint underneath, on top, and on the side and end free and clear whereby the joint can easily be nailed or other suitable fastener can be secured to the pieces, to hold the joint tight and rigid.

Having thus described my invention what I claim as new and useful and desire to secure by Letters Patent is 1. ln an angular or miter clamp, a base or frame, two pairs of jaws adapted to hold two strips of material at an angle to each other, the outer jaws of each pair being movable toward the opposed inner jaw, said inner jaws being resilient to permit the clamped piece to move laterally to a perfect seat upon the complemental piece while preventing longitudinal movement of said piece.

2. in a clamping device adapted to clamp pieces of material into angular relation, a

'feet seat upon a complemental piece,

movable jaw, which shifts the material against a surface which recedes under pressure of said material and thereby permits the clamped piece to move laterally to a perwithout longitudinal movement of either piece.

3. ln an angular or miter clamp, a base or frame adapted to hold strips of material, two jaws at an angle to each other slidable toward two stationary posts, and resilient means between said posts and the work which has to be clamped to permit the clamped piece to move transversely to a perfect seat upon the complemental piece, while preventing longitudinal movement of said piece.

el. ln an angular clamp, a base or frame, two pairs of jaws arranged at an angle to each other, means to operate the outer jaws perpendicularly to the face of the inner jaws, a separate working face, movably attached to each inner jaw, which protects the material from indentation and permits a lateral movement of the clamped pieces, to form a perfect connection at the joining line.

5. ln a miter clamp a base or frame, two pairs of jaws arranged at an angle to each other, means to operate said jaws, and movably attached face plates on the inner jaws which recede parallel to the faces of the outer jaws, during the operation of clamping and allow the clamped piece to move lateraliy to a. perfect seat upon the complemental piece, while preventing longitudinal movement of said piece.

6. ln an angular clamp a base or frame, two pairs of jaws arranged at an angle to each other, means to operate said jaws, movably attached working faces on the inner aws, and resilient means between the movable and the stationary parts of the inner jaws which allow the clamped pieces to move transversely to a perfect joint without shifting them longitudinally.

7. In an angular or miter clamp, a base or frame adapted to support strips of cut material, two pairs of jaws for clamping said material into an angular position, pressing bars movably mounted on said aws for bridging the space between a front and rear jaw and means for pressing the cut material to the proper plane.

S. In an angular or miter clamp, a base or frame adapted to support strips of cut material, two pairs of jaws for clamping said material, a gage for holding the corner of the cut material and means for adjusting the position of said gage to suit the size of the material to be joined.

9. In an angular or miter clamp, a base or frame adapted to support two strips of cut material, two posts attached to said frame with clamping faces at an angle to each other, resilient means attached to said posts to form working faces for the material to be joined, two movable jaws having solid working faces parallel to said resilient working faces and means for simultaneously operatihng both movable aws against the resilient jaws.

l0. ln an angular or miter clamp two pairs oi jaws whose clamping faces form an angle with each other, the inner aw of each pair being resilient and means for moving the outer jaws simultaneously, and perpendicular to their working faces, toward the opposed inner jaws.

l1. ln an angular or miter clamp a base or frame, two pairs of jaws adapted to clamp strips of material into an angular position, uprights on said aws to support a pressing bar for bridging the variable space between two aws and means for pressing the clamped material to its proper plane.

1Q. In a miter` clamp the combinatoin with the traine or base of two pairs of jaws for clamping strips of material into an angular position, the outer jaws of each pair being' perpendicularly movable against the face ol the stationary inner jaw and a gage for holding the corner of the clamped material in position.

13. ln a miter clamp the combination with tlie base or frame of two pairs of jaws for clamping strips o material into an angular position, one jaw oi each pair being simultaneously movable with one jaw of the other pair and an adjustable gage for holding the corner of the clamped material in position.

lll. In a initer clamp the combination with the base or frame of two pairs of jaws for clamping strips of material into an angular position a gage for holding the corner of the clamped material in position, means to bridge the space between each pair of jaws and means to press the clamped material to its proper plane.

l5. In a miter clamp a base or frame, two pairs of jaws adapted to clamp strips of material into an angular position, the outer jaw of each pair being movable perpendieularly against the face of a stationary but resilient inner jaw, means for simultaneously operating the two outer aws, a gage for holding the corner formed by the clamped material in position, and means for pressing the clamped material to its proper plane.

16. In a miter clamp, the combination of a front :traine and a rear frame, guide bars connecting said frames, clamping screws j ournaled in said frames, miter gears mounted on the rear ends of said screws adapted to operate said screws simultaneously, clamping jaws movably mounted on said clamping screws, supports fixed to said jaws, a handle bar adapted to operate said clamp ing screws thereby operating said clamping jaws, posts mounted on said rear frame, resilient opposing jaws secured to said posts, plates having guide pins journaled in said posts adapted to cooperate with said clamping jaws, a bar mounted in said front frame, a gage secured to said gage bar, means for securinor said gage bar in position and a bar movably mounted on said posts and front frame adapted to hold the material to be clamped in position on the supports on `the clamping jaws.

In witness whereof l have hereto set my hand and seal this 14th day oit' June, in the year of one thousand nine hundred and ten.

Manrm JoaoniMsoN. [.L. s j

Vitnesses O. D. ROBINSON, SEYMOUR SYLvnsTnn.

opies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

